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local config = require('nvim-treesitter.config')
local ts = vim.treesitter
local COMMENT_NODES = {
markdown = 'html_block',
haskell = 'haddock',
}
local function check_assertions(file)
local buf = vim.fn.bufadd(file)
vim.fn.bufload(file)
local ft = vim.bo[buf].filetype
local lang = vim.treesitter.language.get_lang(ft) or ft
local comment_node = COMMENT_NODES[lang] or 'comment'
local assertions = vim.fn.json_decode(vim.fn.system({
os.getenv('HLASSERT'),
'-p',
config.get_install_dir('parser') .. '/' .. lang .. '.so',
'-s',
file,
'-c',
comment_node,
}))
assert.True(#assertions > 0, 'No assertions detected!')
local parser = ts.get_parser(buf)
parser:parse(true)
for _, assertion in ipairs(assertions) do
local row = assertion.position.row
local col = assertion.position.column
assert.is.number(row)
assert.is.number(col)
local captures = {}
parser:for_each_tree(function(tstree, tree)
if not tstree then
return
end
local root = tstree:root()
local root_start_row, _, root_end_row, _ = root:range()
-- Only worry about trees within the line range
if root_start_row > row or root_end_row < row then
return
end
local query = ts.query.get(tree:lang(), 'highlights')
if not query then
return
end
for id, node, _ in query:iter_captures(root, buf, row, row + 1) do
if ts.is_in_node_range(node, row, col) then
local capture = query.captures[id]
if capture ~= nil and capture ~= 'conceal' and capture ~= 'spell' then
captures[capture] = true
end
end
end
end)
if assertion.expected_capture_name:match('^!') then
assert.Falsy(
captures[assertion.expected_capture_name:sub(2)],
'Error in '
.. file
.. ':'
.. (row + 1)
.. ':'
.. (col + 1)
.. ': expected "'
.. assertion.expected_capture_name
.. '", captures: '
.. vim.inspect(vim.tbl_keys(captures))
)
else
assert.True(
captures[assertion.expected_capture_name],
'Error in '
.. file
.. ':'
.. (row + 1)
.. ':'
.. (col + 1)
.. ': expected "'
.. assertion.expected_capture_name
.. '", captures: '
.. vim.inspect(vim.tbl_keys(captures))
)
end
end
end
describe('highlight queries', function()
local files = vim.fn.split(vim.fn.glob('tests/query/highlights/**/*.*'))
for _, file in ipairs(files) do
it(file, function()
check_assertions(file)
end)
end
end)
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